123d Autodesk For Mac

Hello. I am making a game in unity 5 and i found a model creator that finally i understand. 123D Design i export it grouped but not combined with meterials. As stl then exporting it instantly to Meshmixer and from that instantly to obj. Its a success but it dosent show textures on the model i made in 123d design and other pieces that was grouped i need them grouped not combined because i will make animations on some parts that is in the group. Any idea why its happening like that? Maybe i am exporting it wrong then how do i export model from 123d design with materials? Sorry about wrong tag it dosent show me what tags i can use!.

Note: The FIRST time you choose this command you will need to download the AutoDesk 123D Print Utility. Follow the detailed instructions to load this app to your computer. These instructions will include shutting down your browser, re-opening your browser, once again going to apps.123dapp.com, and entering your account.